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Free/Busy Requires Restart

Publish free/busy calendar file (*.ifb) via ftp or to a file. View other people's free/busy info in meeting organizer window. Integrate Thunderbird and Outlook calendars without Exchange server.

Rated 3 out of 5 stars (14)
7 users

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tasks & mails Requires Restart

Tasks and emails management in a Thunderbird extension. tasks are stored in emails folder and it's possible to link an email to a task.
See all in one, emails and tasks (no more pain to synchronize a task manager).

Rated 4 out of 5 stars (37)
4 users

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Send Filter Requires Restart

This add-on allows you run your message filters automatically on outgoing messages after sending. In other words, it's a outgoing filter for thunderbird and seamonkey.

Rated 4 out of 5 stars (38)
48 users

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BlunderDelay Requires Restart

Thunderbird Extension: AutoSend Unsent Messages. Flushes entire outbox at regular intervals.

Rated 4 out of 5 stars (17)
6 users

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SmtpSelect Requires Restart

A toolbar button providing easy access to choosing the default SMTP server in Thunderbird.

Rated 4 out of 5 stars (36)
38 users

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ThunderKeep Requires Restart

Google Keep for Thunderbird

Rated 4 out of 5 stars (9)
4 users

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Bird Import Requires Restart

The extension allows to import e-mail messages from The Bat! mail client into Thunderbird.

Rated 3 out of 5 stars (8)
6 users

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about:support Requires Restart

A Mozilla Messaging addon to assist in product support.

Rated 4 out of 5 stars (4)
0 users

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Send and File Requires Restart

Allows to file outgoing messages in folder you prefer

Rated 5 out of 5 stars (20)
7 users

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Extension List Dumper Requires Restart

This extension adds a button ("Dump list") to the Add-ons window. When this button is pressed, a new window is opened with the list of installed extensions, themes or plugins...

Rated 4 out of 5 stars (123)
6 users

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Play drums! Requires Restart

Just… play drums with your keyboard!

Rated 4 out of 5 stars (20)
0 users

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Clean Subject Requires Restart

"Clean Subject" cleans the subject from multiple occurrences of subject prefixes such as ("Re: Re-2: Re:") and postfixes that are inserted by other clients. Words like "[SPAM]" can be cleaned as well. These prefixes can be defined in the preferences.

Rated 4 out of 5 stars (46)
56 users

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Wepware - Capture and Share Live Content Requires Restart

Grab live snapshots of anything on the internet, organize your collected content into folders and share with friends through SNS.

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1 user

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Unread Count Requires Restart

Maintains a file in the profile root directory with counts for unread messages per account. Useful for display in generic status bar, e.g.: taffybar, xmobar, dzen2, etc

Rated 5 out of 5 stars (2)
1 user

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sepsis-console (Deprecated) Requires Restart

THIS VERSION IS DEPRECATED. Use https://addons.mozilla.org/en-US/developers/addon/sepsis-console instead. See the description below.

sepsis-console is a general-purpose JavaScript console for all Mozilla toolkit applications.

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0 users

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Rainbowpicker Requires Restart

Pick any color of the...

Rated 4 out of 5 stars (18)
1 user

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Caret Out Requires Restart

Disables change of the caret browse mode by shortcut key(F7).

Rated 5 out of 5 stars (4)
0 users

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Follow Up Requires Restart

This add-on provides a follow-up email feature for Thunderbird.

Rated 3 out of 5 stars (22)
9 users

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pasteCode Requires Restart

Programmers: want to email some source code to a colleague and have it be actually readable and highlighted just like in your code editor? Well with pasteCode, you can do just that...

Rated 4 out of 5 stars (6)
4 users

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Lightning Nightly Updater (Unofficial) Requires Restart

Quickly get to the latest nightly build of Lightning relevant to the version of Thunderbird and the OS you're on.

Rated 4 out of 5 stars (39)
31 users

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